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Aviation History
1929
1929 - 0229.PDF
JANUARY 31, 1929 -cuid 6e, Make sure it's TRIPLEX ; look for the three X's in a circle ; this trade mark is on all genuine TRIPLEX GLASS. t TRIPLEX SAFETY GLASS CO., LTD., 1, ALBEMARLE STREET, LONDON, W.I. Strength without Weight That is the most important feature of our MAGNESIUM ALLOYS —they have the strength demanded for numerous automobile and aircraft purposes, yet they are 40% lighter than aluminium alloys. We can supply these MAGNESIUM ALLOYS in the form of Forgings and Castings with the following tensile figures:— Forgings: 20-22 tons per square inch. Castings: 10-12 tons per square inch. PLEASE WRITE US FOR FURTHER PARTICULARS. axmn Point Pleasant, Wandsworth, LONDON, S.W.18. Telegrams: • Oftnesiuma, Put, London." Telephone: Putney 4807. HEAT RESISTINGVALVE As used in the Bristol Jupiter Air-Moled Aero Engine as illustrated above. For all types of internal Combustion Engines 7 salient features r 1. It forg«s and machines quite well. 2. The heat treatment is very simple. 3. It retains a high tensile value at high temperatures, 4. Withstands rigorous ther- mal changes without any detrimental effects. 5. It wili not harden under any conditions, and is therefore never brittle. 6. It is very tough at all tem- peratures and under aH conditions. 7. It resists erosion by ex- haust gases to a remarkable degree. KAYSER ELLISON & Co., Ltd., Carlisle Steel Works, SHEFFIELD. Established over 100 years. Save time by using the Air Mail. xxv
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